CCT CleantTek CS 212 - Safety Goggle - It is used for protecting against chemical splash or other contaminants in the lab, cleanrooms, heavy industrial environment, etc. It comes with a direct or indirect venting system. It has an elastic strap that fits the back of the head for placing properly over the face. They are designed to protect the eyes in extreme cold, high wind, or adverse weather conditions. It provides the best clarity of vision under different circumstances. It comes with UV protection and has high mechanical strength. They can be used over prescription glasses or contact lens.